Merge "asoc: sm6150: Add SND event FWK support for talos"

asoc/codecs/bolero/bolero-cdc.c

@@ -18,7 +18,7 @@
 #include <linux/printk.h>
 #include <linux/delay.h>
 #include <linux/kernel.h>
-
+#include <soc/snd_event.h>
 #include "bolero-cdc.h"
 #include "internal.h"
 
@@ -62,6 +62,11 @@ static int __bolero_reg_read(struct bolero_priv *priv,
 	u16 current_mclk_mux_macro;
 
 	mutex_lock(&priv->clk_lock);
+	if (!priv->dev_up) {
+		dev_dbg_ratelimited(priv->dev,
+			"%s: SSR in progress, exit\n", __func__);
+		goto err;
+	}
 	current_mclk_mux_macro =
 		priv->current_mclk_mux_macro[macro_id];
 	if (!priv->macro_params[current_mclk_mux_macro].mclk_fn) {
@@ -94,6 +99,11 @@ static int __bolero_reg_write(struct bolero_priv *priv,
 	u16 current_mclk_mux_macro;
 
 	mutex_lock(&priv->clk_lock);
+	if (!priv->dev_up) {
+		dev_dbg_ratelimited(priv->dev,
+			"%s: SSR in progress, exit\n", __func__);
+		goto err;
+	}
 	current_mclk_mux_macro =
 		priv->current_mclk_mux_macro[macro_id];
 	if (!priv->macro_params[current_mclk_mux_macro].mclk_fn) {
@@ -529,10 +539,64 @@ static ssize_t bolero_version_read(struct snd_info_entry *entry,
 	return simple_read_from_buffer(buf, count, &pos, buffer, len);
 }
 
+static int bolero_ssr_enable(struct device *dev, void *data)
+{
+	struct bolero_priv *priv = data;
+	int macro_idx;
+
+	if (priv->initial_boot) {
+		priv->initial_boot = false;
+		return 0;
+	}
+
+	if (priv->macro_params[VA_MACRO].event_handler)
+		priv->macro_params[VA_MACRO].event_handler(priv->codec,
+			BOLERO_MACRO_EVT_WAIT_VA_CLK_RESET, 0x0);
+
+	regcache_cache_only(priv->regmap, false);
+	/* call ssr event for supported macros */
+	for (macro_idx = START_MACRO; macro_idx < MAX_MACRO; macro_idx++) {
+		if (!priv->macro_params[macro_idx].event_handler)
+			continue;
+		priv->macro_params[macro_idx].event_handler(priv->codec,
+			BOLERO_MACRO_EVT_SSR_UP, 0x0);
+	}
+	mutex_lock(&priv->clk_lock);
+	priv->dev_up = true;
+	mutex_unlock(&priv->clk_lock);
+	bolero_cdc_notifier_call(priv, BOLERO_WCD_EVT_SSR_UP);
+	return 0;
+}
+
+static void bolero_ssr_disable(struct device *dev, void *data)
+{
+	struct bolero_priv *priv = data;
+	int macro_idx;
+
+	regcache_cache_only(priv->regmap, true);
+
+	mutex_lock(&priv->clk_lock);
+	priv->dev_up = false;
+	mutex_unlock(&priv->clk_lock);
+	/* call ssr event for supported macros */
+	for (macro_idx = START_MACRO; macro_idx < MAX_MACRO; macro_idx++) {
+		if (!priv->macro_params[macro_idx].event_handler)
+			continue;
+		priv->macro_params[macro_idx].event_handler(priv->codec,
+			BOLERO_MACRO_EVT_SSR_DOWN, 0x0);
+	}
+	bolero_cdc_notifier_call(priv, BOLERO_WCD_EVT_SSR_DOWN);
+}
+
 static struct snd_info_entry_ops bolero_info_ops = {
 	.read = bolero_version_read,
 };
 
+static const struct snd_event_ops bolero_ssr_ops = {
+	.enable = bolero_ssr_enable,
+	.disable = bolero_ssr_disable,
+};
+
 /*
  * bolero_info_create_codec_entry - creates bolero module
  * @codec_root: The parent directory
@@ -623,6 +687,16 @@ static int bolero_soc_codec_probe(struct snd_soc_codec *codec)
 	else if (priv->num_macros_registered > 2)
 		priv->version = BOLERO_VERSION_1_2;
 
+	ret = snd_event_client_register(priv->dev, &bolero_ssr_ops, priv);
+	if (!ret) {
+		snd_event_notify(priv->dev, SND_EVENT_UP);
+	} else {
+		dev_err(codec->dev,
+			"%s: Registration with SND event FWK failed ret = %d\n",
+			__func__, ret);
+		goto err;
+	}
+
 	dev_dbg(codec->dev, "%s: bolero soc codec probe success\n", __func__);
 err:
 	return ret;
@@ -633,6 +707,7 @@ static int bolero_soc_codec_remove(struct snd_soc_codec *codec)
 	struct bolero_priv *priv = dev_get_drvdata(codec->dev);
 	int macro_idx;
 
+	snd_event_client_deregister(priv->dev);
 	/* call exit for supported macros */
 	for (macro_idx = START_MACRO; macro_idx < MAX_MACRO; macro_idx++)
 		if (priv->macro_params[macro_idx].exit)
@@ -756,6 +831,8 @@ static int bolero_probe(struct platform_device *pdev)
 		bolero_reg_access[VA_MACRO] = bolero_va_top_reg_access;
 
 	priv->dev = &pdev->dev;
+	priv->dev_up = true;
+	priv->initial_boot = true;
 	priv->regmap = bolero_regmap_init(priv->dev,
 					  &bolero_regmap_config);
 	if (IS_ERR_OR_NULL((void *)(priv->regmap))) {

asoc/codecs/bolero/bolero-cdc.h

@@ -43,6 +43,9 @@ enum {
 	BOLERO_MACRO_EVT_RX_MUTE = 1, /* for RX mute/unmute */
 	BOLERO_MACRO_EVT_IMPED_TRUE, /* for imped true */
 	BOLERO_MACRO_EVT_IMPED_FALSE, /* for imped false */
+	BOLERO_MACRO_EVT_SSR_DOWN,
+	BOLERO_MACRO_EVT_SSR_UP,
+	BOLERO_MACRO_EVT_WAIT_VA_CLK_RESET
 };
 
 struct macro_ops {

asoc/codecs/bolero/internal.h

@@ -20,6 +20,8 @@
 /* from bolero to WCD events */
 enum {
 	BOLERO_WCD_EVT_TX_CH_HOLD_CLEAR = 1,
+	BOLERO_WCD_EVT_SSR_DOWN,
+	BOLERO_WCD_EVT_SSR_UP,
 };
 
 enum {
@@ -52,6 +54,8 @@ struct bolero_priv {
 	struct mutex clk_lock;
 	bool va_without_decimation;
 	bool macros_supported[MAX_MACRO];
+	bool dev_up;
+	bool initial_boot;
 	struct macro_ops macro_params[MAX_MACRO];
 	struct snd_soc_dai_driver *bolero_dais;
 	u16 num_dais;

asoc/codecs/bolero/rx-macro.c

@@ -1130,6 +1130,19 @@ static int rx_macro_event_handler(struct snd_soc_codec *codec, u16 event,
 	case BOLERO_MACRO_EVT_IMPED_FALSE:
 		rx_macro_wcd_clsh_imped_config(codec, data, false);
 		break;
+	case BOLERO_MACRO_EVT_SSR_DOWN:
+		swrm_wcd_notify(
+			rx_priv->swr_ctrl_data[0].rx_swr_pdev,
+			SWR_DEVICE_SSR_DOWN, NULL);
+		swrm_wcd_notify(
+			rx_priv->swr_ctrl_data[0].rx_swr_pdev,
+			SWR_DEVICE_DOWN, NULL);
+		break;
+	case BOLERO_MACRO_EVT_SSR_UP:
+		swrm_wcd_notify(
+			rx_priv->swr_ctrl_data[0].rx_swr_pdev,
+			SWR_DEVICE_SSR_UP, NULL);
+		break;
 	}
 	return 0;
 }

asoc/codecs/bolero/tx-macro.c

@@ -19,6 +19,7 @@
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>
 #include <sound/tlv.h>
+#include <soc/swr-wcd.h>
 #include "bolero-cdc.h"
 #include "bolero-cdc-registers.h"
 #include "../msm-cdc-pinctrl.h"
@@ -303,6 +304,33 @@ exit:
 	return ret;
 }
 
+static int tx_macro_event_handler(struct snd_soc_codec *codec, u16 event,
+				  u32 data)
+{
+	struct device *tx_dev = NULL;
+	struct tx_macro_priv *tx_priv = NULL;
+
+	if (!tx_macro_get_data(codec, &tx_dev, &tx_priv, __func__))
+		return -EINVAL;
+
+	switch (event) {
+	case BOLERO_MACRO_EVT_SSR_DOWN:
+		swrm_wcd_notify(
+			tx_priv->swr_ctrl_data[0].tx_swr_pdev,
+			SWR_DEVICE_SSR_DOWN, NULL);
+		swrm_wcd_notify(
+			tx_priv->swr_ctrl_data[0].tx_swr_pdev,
+			SWR_DEVICE_DOWN, NULL);
+		break;
+	case BOLERO_MACRO_EVT_SSR_UP:
+		swrm_wcd_notify(
+			tx_priv->swr_ctrl_data[0].tx_swr_pdev,
+			SWR_DEVICE_SSR_UP, NULL);
+		break;
+	}
+	return 0;
+}
+
 static void tx_macro_tx_hpf_corner_freq_callback(struct work_struct *work)
 {
 	struct delayed_work *hpf_delayed_work = NULL;
@@ -1640,6 +1668,7 @@ static void tx_macro_init_ops(struct macro_ops *ops,
 	ops->dai_ptr = tx_macro_dai;
 	ops->num_dais = ARRAY_SIZE(tx_macro_dai);
 	ops->mclk_fn = tx_macro_mclk_ctrl;
+	ops->event_handler = tx_macro_event_handler;
 }
 
 static int tx_macro_probe(struct platform_device *pdev)

asoc/codecs/bolero/va-macro.c

@@ -46,6 +46,7 @@
 #define VA_MACRO_TX_DMIC_CLK_DIV_SHFT 0x01
 
 #define BOLERO_CDC_VA_TX_UNMUTE_DELAY_MS	40
+#define MAX_RETRY_ATTEMPTS 50
 
 static const DECLARE_TLV_DB_SCALE(digital_gain, 0, 1, 0);
 static int va_tx_unmute_delay = BOLERO_CDC_VA_TX_UNMUTE_DELAY_MS;
@@ -178,8 +179,7 @@ static int va_macro_mclk_enable(struct va_macro_priv *va_priv,
 				0x02, 0x02);
 		}
 	} else {
-		va_priv->va_mclk_users--;
-		if (va_priv->va_mclk_users == 0) {
+		if (va_priv->va_mclk_users == 1) {
 			regmap_update_bits(regmap,
 				BOLERO_CDC_VA_TOP_CSR_TOP_CFG0,
 				0x02, 0x00);
@@ -192,12 +192,47 @@ static int va_macro_mclk_enable(struct va_macro_priv *va_priv,
 			bolero_request_clock(va_priv->dev,
 					VA_MACRO, MCLK_MUX0, false);
 		}
+		va_priv->va_mclk_users--;
 	}
 exit:
 	mutex_unlock(&va_priv->mclk_lock);
 	return ret;
 }
 
+static int va_macro_event_handler(struct snd_soc_codec *codec, u16 event,
+				  u32 data)
+{
+	struct device *va_dev = NULL;
+	struct va_macro_priv *va_priv = NULL;
+	int retry_cnt = MAX_RETRY_ATTEMPTS;
+
+	if (!va_macro_get_data(codec, &va_dev, &va_priv, __func__))
+		return -EINVAL;
+
+	switch (event) {
+	case BOLERO_MACRO_EVT_WAIT_VA_CLK_RESET:
+		while ((va_priv->va_mclk_users != 0) && (retry_cnt != 0)) {
+			dev_dbg(va_dev, "%s:retry_cnt: %d\n",
+				__func__, retry_cnt);
+			/*
+			 * loop and check every 20ms for va_mclk user count
+			 * to get reset to 0 which ensures userspace teardown
+			 * is done and SSR powerup seq can proceed.
+			 */
+			msleep(20);
+			retry_cnt--;
+		}
+		if (retry_cnt == 0)
+			dev_err(va_dev,
+				"%s: va_mclk_users is non-zero still, audio SSR fail!!\n",
+				__func__);
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
 static int va_macro_mclk_event(struct snd_soc_dapm_widget *w,
 			       struct snd_kcontrol *kcontrol, int event)
 {
@@ -1054,13 +1089,13 @@ static const struct snd_soc_dapm_widget va_macro_dapm_widgets[] = {
 			   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
 			   SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
 
-	SND_SOC_DAPM_SUPPLY_S("VA_MCLK", 0, SND_SOC_NOPM, 0, 0,
+	SND_SOC_DAPM_SUPPLY_S("VA_MCLK", -1, SND_SOC_NOPM, 0, 0,
 			      va_macro_mclk_event,
 			      SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 };
 
 static const struct snd_soc_dapm_widget va_macro_wod_dapm_widgets[] = {
-	SND_SOC_DAPM_SUPPLY_S("VA_MCLK", 0, SND_SOC_NOPM, 0, 0,
+	SND_SOC_DAPM_SUPPLY_S("VA_MCLK", -1, SND_SOC_NOPM, 0, 0,
 			      va_macro_mclk_event,
 			      SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 };
@@ -1465,6 +1500,7 @@ static void va_macro_init_ops(struct macro_ops *ops,
 	ops->exit = va_macro_deinit;
 	ops->io_base = va_io_base;
 	ops->mclk_fn = va_macro_mclk_ctrl;
+	ops->event_handler = va_macro_event_handler;
 }
 
 static int va_macro_probe(struct platform_device *pdev)

asoc/codecs/bolero/wsa-macro.c

@@ -859,6 +859,33 @@ exit:
 	return ret;
 }
 
+static int wsa_macro_event_handler(struct snd_soc_codec *codec, u16 event,
+				   u32 data)
+{
+	struct device *wsa_dev = NULL;
+	struct wsa_macro_priv *wsa_priv = NULL;
+
+	if (!wsa_macro_get_data(codec, &wsa_dev, &wsa_priv, __func__))
+		return -EINVAL;
+
+	switch (event) {
+	case BOLERO_MACRO_EVT_SSR_DOWN:
+		swrm_wcd_notify(
+			wsa_priv->swr_ctrl_data[0].wsa_swr_pdev,
+			SWR_DEVICE_SSR_DOWN, NULL);
+		swrm_wcd_notify(
+			wsa_priv->swr_ctrl_data[0].wsa_swr_pdev,
+			SWR_DEVICE_DOWN, NULL);
+		break;
+	case BOLERO_MACRO_EVT_SSR_UP:
+		swrm_wcd_notify(
+			wsa_priv->swr_ctrl_data[0].wsa_swr_pdev,
+			SWR_DEVICE_SSR_UP, NULL);
+		break;
+	}
+	return 0;
+}
+
 static int wsa_macro_enable_vi_feedback(struct snd_soc_dapm_widget *w,
 					struct snd_kcontrol *kcontrol,
 					int event)
@@ -2617,6 +2644,7 @@ static void wsa_macro_init_ops(struct macro_ops *ops,
 	ops->dai_ptr = wsa_macro_dai;
 	ops->num_dais = ARRAY_SIZE(wsa_macro_dai);
 	ops->mclk_fn = wsa_macro_mclk_ctrl;
+	ops->event_handler = wsa_macro_event_handler;
 }
 
 static int wsa_macro_probe(struct platform_device *pdev)

asoc/codecs/wcd937x/internal.h

@@ -123,6 +123,8 @@ enum {
 
 enum {
 	BOLERO_WCD_EVT_TX_CH_HOLD_CLEAR = 1,
+	BOLERO_WCD_EVT_SSR_DOWN,
+	BOLERO_WCD_EVT_SSR_UP,
 };
 
 enum {

asoc/codecs/wcd937x/wcd937x-mbhc.c

@@ -974,6 +974,7 @@ int wcd937x_mbhc_post_ssr_init(struct wcd937x_mbhc *mbhc,
 		return -EINVAL;
 	}
 
+	wcd937x_mbhc_hs_detect_exit(codec);
 	wcd_mbhc_deinit(wcd_mbhc);
 	ret = wcd_mbhc_init(wcd_mbhc, codec, &mbhc_cb, &intr_ids,
 			    wcd_mbhc_registers, WCD937X_ZDET_SUPPORTED);

asoc/codecs/wcd937x/wcd937x-regmap.c

@@ -450,8 +450,10 @@ static bool wcd937x_volatile_register(struct device *dev, unsigned int reg)
 {
 	if(reg <= WCD937X_BASE_ADDRESS)
 		return 0;
-	return (wcd937x_reg_access[WCD937X_REG(reg)] & RD_REG)
-		& ~(wcd937x_reg_access[WCD937X_REG(reg)] & WR_REG);
+	if ((wcd937x_reg_access[WCD937X_REG(reg)] & RD_REG)
+		&& !(wcd937x_reg_access[WCD937X_REG(reg)] & WR_REG))
+		return true;
+	return false;
 }
 
 struct regmap_config wcd937x_regmap_config = {

asoc/codecs/wcd937x/wcd937x.c

@@ -48,6 +48,8 @@ static const DECLARE_TLV_DB_SCALE(line_gain, 0, 7, 1);
 static const DECLARE_TLV_DB_SCALE(analog_gain, 0, 25, 1);
 
 static int wcd937x_handle_post_irq(void *data);
+static int wcd937x_reset(struct device *dev);
+static int wcd937x_reset_low(struct device *dev);
 
 static const struct regmap_irq wcd937x_irqs[WCD937X_NUM_IRQS] = {
 	REGMAP_IRQ_REG(WCD937X_IRQ_MBHC_BUTTON_PRESS_DET, 0, 0x01),
@@ -1216,6 +1218,23 @@ int wcd937x_micbias_control(struct snd_soc_codec *codec,
 }
 EXPORT_SYMBOL(wcd937x_micbias_control);
 
+static int wcd937x_get_logical_addr(struct swr_device *swr_dev)
+{
+	int ret = 0;
+	uint8_t devnum = 0;
+
+	ret = swr_get_logical_dev_num(swr_dev, swr_dev->addr, &devnum);
+	if (ret) {
+		dev_err(&swr_dev->dev,
+			"%s get devnum %d for dev addr %lx failed\n",
+			__func__, devnum, swr_dev->addr);
+		swr_remove_device(swr_dev);
+		return ret;
+	}
+	swr_dev->dev_num = devnum;
+	return 0;
+}
+
 static int wcd937x_event_notify(struct notifier_block *block,
 				unsigned long val,
 				void *data)
@@ -1223,8 +1242,10 @@ static int wcd937x_event_notify(struct notifier_block *block,
 	u16 event = (val & 0xffff);
 	u16 amic = (val >> 0x10);
 	u16 mask = 0x40, reg = 0x0;
+	int ret = 0;
 	struct wcd937x_priv *wcd937x = dev_get_drvdata((struct device *)data);
 	struct snd_soc_codec *codec = wcd937x->codec;
+	struct wcd_mbhc *mbhc;
 
 	switch (event) {
 	case BOLERO_WCD_EVT_TX_CH_HOLD_CLEAR:
@@ -1238,6 +1259,25 @@ static int wcd937x_event_notify(struct notifier_block *block,
 			mask = 0x20;
 		snd_soc_update_bits(codec, reg, mask, 0x00);
 		break;
+	case BOLERO_WCD_EVT_SSR_DOWN:
+		wcd937x_reset_low(wcd937x->dev);
+		break;
+	case BOLERO_WCD_EVT_SSR_UP:
+		wcd937x_reset(wcd937x->dev);
+		wcd937x_get_logical_addr(wcd937x->tx_swr_dev);
+		wcd937x_get_logical_addr(wcd937x->rx_swr_dev);
+		regcache_mark_dirty(wcd937x->regmap);
+		regcache_sync(wcd937x->regmap);
+		/* Initialize MBHC module */
+		mbhc = &wcd937x->mbhc->wcd_mbhc;
+		ret = wcd937x_mbhc_post_ssr_init(wcd937x->mbhc, codec);
+		if (ret) {
+			dev_err(codec->dev, "%s: mbhc initialization failed\n",
+				__func__);
+		} else {
+			wcd937x_mbhc_hs_detect(codec, mbhc->mbhc_cfg);
+		}
+		break;
 	default:
 		dev_err(codec->dev, "%s: invalid event %d\n", __func__, event);
 		break;
@@ -1923,7 +1963,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wcd937x = {
 	},
 };
 
-int wcd937x_reset(struct device *dev)
+static int wcd937x_reset(struct device *dev)
 {
 	struct wcd937x_priv *wcd937x = NULL;
 	int rc = 0;
@@ -2026,6 +2066,36 @@ static void wcd937x_dt_parse_micbias_info(struct device *dev,
 	}
 }
 
+static int wcd937x_reset_low(struct device *dev)
+{
+	struct wcd937x_priv *wcd937x = NULL;
+	int rc = 0;
+
+	if (!dev)
+		return -ENODEV;
+
+	wcd937x = dev_get_drvdata(dev);
+	if (!wcd937x)
+		return -EINVAL;
+
+	if (!wcd937x->rst_np) {
+		dev_err(dev, "%s: reset gpio device node not specified\n",
+				__func__);
+		return -EINVAL;
+	}
+
+	rc = msm_cdc_pinctrl_select_sleep_state(wcd937x->rst_np);
+	if (rc) {
+		dev_err(dev, "%s: wcd sleep state request fail!\n",
+				__func__);
+		return rc;
+	}
+	/* 20ms sleep required after pulling the reset gpio to LOW */
+	usleep_range(20, 30);
+
+	return rc;
+}
+
 struct wcd937x_pdata *wcd937x_populate_dt_data(struct device *dev)
 {
 	struct wcd937x_pdata *pdata = NULL;

asoc/codecs/wcd937x/wcd937x_slave.c

@@ -85,6 +85,21 @@ static const struct component_ops wcd937x_slave_comp_ops = {
 	.unbind = wcd937x_slave_unbind,
 };
 
+static int wcd937x_swr_up(struct swr_device *pdev)
+{
+	return 0;
+}
+
+static int wcd937x_swr_down(struct swr_device *pdev)
+{
+	return 0;
+}
+
+static int wcd937x_swr_reset(struct swr_device *pdev)
+{
+	return 0;
+}
+
 static int wcd937x_swr_probe(struct swr_device *pdev)
 {
 	return component_add(&pdev->dev, &wcd937x_slave_comp_ops);
@@ -105,6 +120,9 @@ static struct swr_driver wcd937x_slave_driver = {
 	.probe = wcd937x_swr_probe,
 	.remove = wcd937x_swr_remove,
 	.id_table = wcd937x_swr_id,
+	.device_up = wcd937x_swr_up,
+	.device_down = wcd937x_swr_down,
+	.reset_device = wcd937x_swr_reset,
 };
 
 static int __init wcd937x_slave_init(void)

asoc/sm6150.c

@@ -28,7 +28,7 @@
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/info.h>
-#include <dsp/audio_notifier.h>
+#include <soc/snd_event.h>
 #include <dsp/q6afe-v2.h>
 #include <dsp/q6core.h>
 #include "device_event.h"
@@ -201,6 +201,7 @@ struct msm_asoc_mach_data {
 	struct pinctrl *usbc_en2_gpio_p; /* used by pinctrl API */
 	struct device_node *hph_en1_gpio_p; /* used by pinctrl API */
 	struct device_node *hph_en0_gpio_p; /* used by pinctrl API */
+	bool is_afe_config_done;
 };
 
 struct msm_asoc_wcd93xx_codec {
@@ -628,10 +629,7 @@ static SOC_ENUM_SINGLE_EXT_DECL(tx_cdc_dma_tx_3_sample_rate,
 static SOC_ENUM_SINGLE_EXT_DECL(tx_cdc_dma_tx_4_sample_rate,
 				cdc_dma_sample_rate_text);
 
-static struct platform_device *spdev;
-
 static int msm_hifi_control;
-static bool is_initial_boot;
 static bool codec_reg_done;
 static struct snd_soc_aux_dev *msm_aux_dev;
 static struct snd_soc_codec_conf *msm_codec_conf;
@@ -4643,121 +4641,6 @@ static void msm_afe_clear_config(void)
 	afe_clear_config(AFE_SLIMBUS_SLAVE_CONFIG);
 }
 
-static int msm_adsp_power_up_config(struct snd_soc_codec *codec,
-				    struct snd_card *card)
-{
-	int ret = 0;
-	unsigned long timeout;
-	int adsp_ready = 0;
-	bool snd_card_online = 0;
-
-	timeout = jiffies +
-		msecs_to_jiffies(ADSP_STATE_READY_TIMEOUT_MS);
-
-	do {
-		if (!snd_card_online) {
-			snd_card_online = snd_card_is_online_state(card);
-			pr_debug("%s: Sound card is %s\n", __func__,
-				 snd_card_online ? "Online" : "Offline");
-		}
-		if (!adsp_ready) {
-			adsp_ready = q6core_is_adsp_ready();
-			pr_debug("%s: ADSP Audio is %s\n", __func__,
-				 adsp_ready ? "ready" : "not ready");
-		}
-		if (snd_card_online && adsp_ready)
-			break;
-
-		/*
-		 * Sound card/ADSP will be coming up after subsystem restart and
-		 * it might not be fully up when the control reaches
-		 * here. So, wait for 50msec before checking ADSP state
-		 */
-		msleep(50);
-	} while (time_after(timeout, jiffies));
-
-	if (!snd_card_online || !adsp_ready) {
-		pr_err("%s: Timeout. Sound card is %s, ADSP Audio is %s\n",
-		       __func__,
-		       snd_card_online ? "Online" : "Offline",
-		       adsp_ready ? "ready" : "not ready");
-		ret = -ETIMEDOUT;
-		goto err;
-	}
-
-	ret = msm_afe_set_config(codec);
-	if (ret)
-		pr_err("%s: Failed to set AFE config. err %d\n",
-			__func__, ret);
-
-	return 0;
-
-err:
-	return ret;
-}
-
-static int sm6150_notifier_service_cb(struct notifier_block *this,
-					 unsigned long opcode, void *ptr)
-{
-	int ret;
-	struct snd_soc_card *card = NULL;
-	const char *be_dl_name = LPASS_BE_SLIMBUS_0_RX;
-	struct snd_soc_pcm_runtime *rtd;
-	struct snd_soc_codec *codec;
-
-	pr_debug("%s: Service opcode 0x%lx\n", __func__, opcode);
-
-	switch (opcode) {
-	case AUDIO_NOTIFIER_SERVICE_DOWN:
-		/*
-		 * Use flag to ignore initial boot notifications
-		 * On initial boot msm_adsp_power_up_config is
-		 * called on init. There is no need to clear
-		 * and set the config again on initial boot.
-		 */
-		if (is_initial_boot)
-			break;
-		msm_afe_clear_config();
-		break;
-	case AUDIO_NOTIFIER_SERVICE_UP:
-		if (is_initial_boot) {
-			is_initial_boot = false;
-			break;
-		}
-		if (!spdev)
-			return -EINVAL;
-
-		card = platform_get_drvdata(spdev);
-		rtd = snd_soc_get_pcm_runtime(card, be_dl_name);
-		if (!rtd) {
-			dev_err(card->dev,
-				"%s: snd_soc_get_pcm_runtime for %s failed!\n",
-				__func__, be_dl_name);
-			ret = -EINVAL;
-			goto err;
-		}
-		codec = rtd->codec;
-
-		ret = msm_adsp_power_up_config(codec, card->snd_card);
-		if (ret < 0) {
-			dev_err(card->dev,
-				"%s: msm_adsp_power_up_config failed ret = %d!\n",
-				__func__, ret);
-			goto err;
-		}
-		break;
-	default:
-		break;
-	}
-err:
-	return NOTIFY_OK;
-}
-
-static struct notifier_block service_nb = {
-	.notifier_call  = sm6150_notifier_service_cb,
-	.priority = -INT_MAX,
-};
-
 static int msm_audrx_tavil_init(struct snd_soc_pcm_runtime *rtd)
 {
 	int ret = 0;
@@ -4845,11 +4728,12 @@ static int msm_audrx_tavil_init(struct snd_soc_pcm_runtime *rtd)
 
 	msm_codec_fn.get_afe_config_fn = tavil_get_afe_config;
 
-	ret = msm_adsp_power_up_config(codec, rtd->card->snd_card);
+	ret = msm_afe_set_config(codec);
 	if (ret) {
 		pr_err("%s: Failed to set AFE config %d\n", __func__, ret);
 		goto err;
 	}
+	pdata->is_afe_config_done = true;
 
 	config_data = msm_codec_fn.get_afe_config_fn(codec,
 						     AFE_AANC_VERSION);
@@ -8357,6 +8241,108 @@ static void msm_i2s_auxpcm_deinit(void)
 		mi2s_intf_conf[count].msm_is_mi2s_master = 0;
 	}
 }
+
+static int sm6150_ssr_enable(struct device *dev, void *data)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+	struct msm_asoc_mach_data *pdata;
+	int ret = 0;
+
+	if (!card) {
+		dev_err(dev, "%s: card is NULL\n", __func__);
+		ret = -EINVAL;
+		goto err;
+	}
+
+	if (!strcmp(card->name, "sm6150-tavil-snd-card")) {
+		pdata = snd_soc_card_get_drvdata(card);
+		if (!pdata->is_afe_config_done) {
+			const char *be_dl_name = LPASS_BE_SLIMBUS_0_RX;
+			struct snd_soc_pcm_runtime *rtd;
+
+			rtd = snd_soc_get_pcm_runtime(card, be_dl_name);
+			if (!rtd) {
+				dev_err(dev,
+					"%s: snd_soc_get_pcm_runtime for %s failed!\n",
+					__func__, be_dl_name);
+				ret = -EINVAL;
+				goto err;
+			}
+			ret = msm_afe_set_config(rtd->codec);
+			if (ret)
+				dev_err(dev, "%s: Failed to set AFE config. err %d\n",
+					__func__, ret);
+			else
+				pdata->is_afe_config_done = true;
+		}
+	}
+	snd_soc_card_change_online_state(card, 1);
+	dev_dbg(dev, "%s: setting snd_card to ONLINE\n", __func__);
+
+err:
+	return ret;
+}
+
+static void sm6150_ssr_disable(struct device *dev, void *data)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+	struct msm_asoc_mach_data *pdata;
+
+	if (!card) {
+		dev_err(dev, "%s: card is NULL\n", __func__);
+		return;
+	}
+
+	dev_dbg(dev, "%s: setting snd_card to OFFLINE\n", __func__);
+	snd_soc_card_change_online_state(card, 0);
+
+	if (!strcmp(card->name, "sm6150-tavil-snd-card")) {
+		pdata = snd_soc_card_get_drvdata(card);
+		msm_afe_clear_config();
+		pdata->is_afe_config_done = false;
+	}
+}
+
+static const struct snd_event_ops sm6150_ssr_ops = {
+	.enable = sm6150_ssr_enable,
+	.disable = sm6150_ssr_disable,
+};
+
+static int msm_audio_ssr_compare(struct device *dev, void *data)
+{
+	struct device_node *node = data;
+
+	dev_dbg(dev, "%s: dev->of_node = 0x%p, node = 0x%p\n",
+		__func__, dev->of_node, node);
+	return (dev->of_node && dev->of_node == node);
+}
+
+static int msm_audio_ssr_register(struct device *dev)
+{
+	struct device_node *np = dev->of_node;
+	struct snd_event_clients *ssr_clients = NULL;
+	struct device_node *node;
+	int ret;
+	int i;
+
+	for (i = 0; ; i++) {
+		node = of_parse_phandle(np, "qcom,msm_audio_ssr_devs", i);
+		if (!node)
+			break;
+		snd_event_mstr_add_client(&ssr_clients,
+					msm_audio_ssr_compare, node);
+	}
+
+	ret = snd_event_master_register(dev, &sm6150_ssr_ops,
+					ssr_clients, NULL);
+	if (!ret)
+		snd_event_notify(dev, SND_EVENT_UP);
+
+	return ret;
+}
+
 static int msm_asoc_machine_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card;
@@ -8419,7 +8405,6 @@ static int msm_asoc_machine_probe(struct platform_device *pdev)
 		goto err;
 	}
 	dev_info(&pdev->dev, "Sound card %s registered\n", card->name);
-	spdev = pdev;
 
 	pdata->hph_en1_gpio_p = of_parse_phandle(pdev->dev.of_node,
 						"qcom,hph-en1-gpio", 0);
@@ -8486,15 +8471,7 @@ static int msm_asoc_machine_probe(struct platform_device *pdev)
 	}
 
 	msm_i2s_auxpcm_init(pdev);
-	if (!strcmp(card->name, "sm6150-tavil-snd-card")) {
-		is_initial_boot = true;
-		ret = audio_notifier_register("sm6150",
-					      AUDIO_NOTIFIER_ADSP_DOMAIN,
-					      &service_nb);
-		if (ret < 0)
-			pr_err("%s: Audio notifier register failed ret = %d\n",
-				   __func__, ret);
-	} else {
+	if (strcmp(card->name, "sm6150-tavil-snd-card")) {
 		pdata->dmic01_gpio_p = of_parse_phandle(pdev->dev.of_node,
 						      "qcom,cdc-dmic01-gpios",
 						       0);
@@ -8502,13 +8479,19 @@ static int msm_asoc_machine_probe(struct platform_device *pdev)
 						      "qcom,cdc-dmic23-gpios",
 						       0);
 	}
+
+	ret = msm_audio_ssr_register(&pdev->dev);
+	if (ret)
+		pr_err("%s: Registration with SND event FWK failed ret = %d\n",
+			__func__, ret);
+
 err:
 	return ret;
 }
 
 static int msm_asoc_machine_remove(struct platform_device *pdev)
 {
-	audio_notifier_deregister("sm6150");
+	snd_event_master_deregister(&pdev->dev);
 	msm_i2s_auxpcm_deinit();
 
 	return 0;

soc/pinctrl-lpi.c

@@ -21,6 +21,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/types.h>
+#include <soc/snd_event.h>
 #include <dsp/audio_notifier.h>
 
 #include "core.h"
@@ -59,6 +60,7 @@
 #define LPI_GPIO_FUNC_FUNC5			"func5"
 
 static bool lpi_dev_up;
+static struct device *lpi_dev;
 
 /* The index of each function in lpi_gpio_functions[] array */
 enum lpi_gpio_func_index {
@@ -384,12 +386,14 @@ static int lpi_notifier_service_cb(struct notifier_block *this,
 			initial_boot = false;
 			break;
 		}
+		snd_event_notify(lpi_dev, SND_EVENT_DOWN);
 		lpi_dev_up = false;
 		break;
 	case AUDIO_NOTIFIER_SERVICE_UP:
 		if (initial_boot)
 			initial_boot = false;
 		lpi_dev_up = true;
+		snd_event_notify(lpi_dev, SND_EVENT_UP);
 		break;
 	default:
 		break;
@@ -402,6 +406,15 @@ static struct notifier_block service_nb = {
 	.priority = -INT_MAX,
 };
 
+static void lpi_pinctrl_ssr_disable(struct device *dev, void *data)
+{
+	lpi_dev_up = false;
+}
+
+static const struct snd_event_ops lpi_pinctrl_ssr_ops = {
+	.disable = lpi_pinctrl_ssr_disable,
+};
+
 #ifdef CONFIG_DEBUG_FS
 #include <linux/seq_file.h>
 
@@ -576,6 +589,7 @@ static int lpi_pinctrl_probe(struct platform_device *pdev)
 		goto err_range;
 	}
 
+	lpi_dev = &pdev->dev;
 	lpi_dev_up = true;
 	ret = audio_notifier_register("lpi_tlmm", AUDIO_NOTIFIER_ADSP_DOMAIN,
 				      &service_nb);
@@ -585,8 +599,19 @@ static int lpi_pinctrl_probe(struct platform_device *pdev)
 		goto err_range;
 	}
 
+	ret = snd_event_client_register(dev, &lpi_pinctrl_ssr_ops, NULL);
+	if (!ret) {
+		snd_event_notify(dev, SND_EVENT_UP);
+	} else {
+		dev_err(dev, "%s: snd_event registration failed, ret [%d]\n",
+			__func__, ret);
+		goto err_snd_evt;
+	}
+
 	return 0;
 
+err_snd_evt:
+	audio_notifier_deregister("lpi_tlmm");
 err_range:
 	gpiochip_remove(&state->chip);
 err_chip:
@@ -597,6 +622,7 @@ static int lpi_pinctrl_remove(struct platform_device *pdev)
 {
 	struct lpi_gpio_state *state = platform_get_drvdata(pdev);
 
+	snd_event_client_deregister(&pdev->dev);
 	audio_notifier_deregister("lpi_tlmm");
 	gpiochip_remove(&state->chip);
 	return 0;